Safety anti-releasing elevator pin

The utility model relates to a safety anti-releasing elevator pin which relates to a safety installation which is used for guaranteeing that an elevator is not separated from a suspension ring in well drilling and repairing work. The utility model is composed of a pin body and a safety anti-releasin...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ZHANZHONG JIN, CHANGQING LIU, WEIDONG HE
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	The utility model relates to a safety anti-releasing elevator pin which relates to a safety installation which is used for guaranteeing that an elevator is not separated from a suspension ring in well drilling and repairing work. The utility model is composed of a pin body and a safety anti-releasing device, and the poor practicality and security of other pins can be overcome. The utility model has the advantages of safety, simple manufacturing technique, low cost, and easy use and operation, which is suitable for poor operation environment in field.